In all of the following figures, values where the scheduled collection time occured > 1 hour prior to the order time were removed (n = 44). It is unclear exactly why the the scheduled collection time for these orders was back-dated to be prior to the time of ordering.
Distribution of time from task dispatch to scheduled collection
It is clear that Stat orders dispatch immediately, but Routine and Timed Study are much more variable, with most dispatching 1-3 hours before the scheduled collection time.
Distribution of time from task dispatch to scheduled collection
Summary measures for the time from dispatch to scheduled collection
| type | category | minimum | q1 | median | mean | q3 | maximum | na |
|---|---|---|---|---|---|---|---|---|
| All | All | -3.017 | 0.000 | 0.783 | 1.709 | 1.783 | 33.550 | 33 |
| Future | All | -2.250 | 0.783 | 1.767 | 2.577 | 2.283 | 33.550 | 16 |
| Future | Routine | -2.250 | 0.250 | 1.117 | 2.607 | 3.242 | 23.800 | 6 |
| Future | Stat | -0.083 | 2.000 | 4.867 | 7.218 | 11.150 | 24.280 | NA |
| Future | Timed Study | 0.017 | 0.879 | 1.767 | 2.272 | 2.267 | 33.550 | 10 |
| Now | All | -3.017 | -0.017 | -0.017 | -0.026 | 0.000 | 0.917 | 17 |
| Now | Routine | -3.017 | -0.800 | -0.333 | -0.502 | -0.033 | 0.817 | 6 |
| Now | Stat | -0.800 | -0.017 | -0.017 | 0.000 | 0.000 | 0.917 | 7 |
| Now | Timed Study | -0.483 | 0.000 | 0.217 | 0.292 | 0.633 | 0.917 | 4 |
Distribution of time from task dispatch to scheduled collection by day of week
Day of week and hour of day are based on the scheduled collection time.
Distribution of time from task dispatch to scheduled collection by hour of day
Distribution of time from task order to dispatch
Distribution of time from task order to dispatch
Time from dispatch until scheduled collection for Future Routine orders
Time from dispatch until scheduled collection for Future Stat orders
Time from dispatch until scheduled collection for Future Timed Study orders
Time between order to scheduled collection and order to dispatch for future orders
There is a strong correlation between the time from order to scheduled collection and the time from order to dispatch.
Correlation between the time from order to scheduled collection and the time from order to dispatch
| type | category | estimate | statistic | p.value | parameter | conf.low | conf.high | method | alternative |
|---|---|---|---|---|---|---|---|---|---|
| All | All | 0.991 | 410.997 | 0.000 | 3224 | 0.990 | 0.991 | Pearson’s product-moment correlation | two.sided |
| Future | All | 0.991 | 339.529 | 0.000 | 2149 | 0.990 | 0.992 | Pearson’s product-moment correlation | two.sided |
| Future | Routine | 0.996 | 289.329 | 0.000 | 640 | 0.996 | 0.997 | Pearson’s product-moment correlation | two.sided |
| Future | Stat | 0.277 | 2.692 | 0.009 | 87 | 0.073 | 0.459 | Pearson’s product-moment correlation | two.sided |
| Future | Timed Study | 0.972 | 154.543 | 0.000 | 1418 | 0.969 | 0.974 | Pearson’s product-moment correlation | two.sided |
| Now | All | -0.008 | -0.276 | 0.783 | 1073 | -0.068 | 0.051 | Pearson’s product-moment correlation | two.sided |
| Now | Routine | 0.034 | 0.408 | 0.684 | 143 | -0.130 | 0.196 | Pearson’s product-moment correlation | two.sided |
| Now | Stat | 0.134 | 3.766 | 0.000 | 775 | 0.064 | 0.202 | Pearson’s product-moment correlation | two.sided |
| Now | Timed Study | 0.264 | 3.363 | 0.001 | 151 | 0.110 | 0.406 | Pearson’s product-moment correlation | two.sided |
Time between order to scheduled collection and dispatch to scheduled collection
There is little correlation between the time from order to scheduled collection and time from dispatch to scheduled collection. This suggests that the dispatch time is triggered by the scheduled collection time, regardless of how far in advance the lab is ordered, with the exception of Stat orders which dispatch immediately.
Correlation between the time from order to scheduled collection and time from dispatch to scheduled collection
| type | category | estimate | statistic | p.value | parameter | conf.low | conf.high | method | alternative |
|---|---|---|---|---|---|---|---|---|---|
| All | All | 0.238 | 13.907 | 0.000 | 3224 | 0.205 | 0.270 | Pearson’s product-moment correlation | two.sided |
| Future | All | 0.115 | 5.381 | 0.000 | 2149 | 0.073 | 0.157 | Pearson’s product-moment correlation | two.sided |
| Future | Routine | 0.126 | 3.206 | 0.001 | 640 | 0.049 | 0.201 | Pearson’s product-moment correlation | two.sided |
| Future | Stat | 0.921 | 22.059 | 0.000 | 87 | 0.882 | 0.948 | Pearson’s product-moment correlation | two.sided |
| Future | Timed Study | 0.182 | 6.950 | 0.000 | 1418 | 0.131 | 0.231 | Pearson’s product-moment correlation | two.sided |
| Now | All | 0.613 | 25.396 | 0.000 | 1073 | 0.574 | 0.649 | Pearson’s product-moment correlation | two.sided |
| Now | Routine | 0.290 | 3.623 | 0.000 | 143 | 0.133 | 0.433 | Pearson’s product-moment correlation | two.sided |
| Now | Stat | 0.968 | 106.808 | 0.000 | 775 | 0.963 | 0.972 | Pearson’s product-moment correlation | two.sided |
| Now | Timed Study | 0.987 | 74.553 | 0.000 | 151 | 0.982 | 0.990 | Pearson’s product-moment correlation | two.sided |
Time between dispatch to scheduled collection and scheduled to actual collection
There is no correlation between the amount of time prior to scheduled collection that the task dispatched and when the lab was actually collected.
Correlation between the amount of time prior to scheduled collection that the task dispatched and when the lab was actually collected
| type | category | estimate | statistic | p.value | parameter | conf.low | conf.high | method | alternative |
|---|---|---|---|---|---|---|---|---|---|
| All | All | -0.079 | -4.210 | 0.000 | 2804 | -0.116 | -0.042 | Pearson’s product-moment correlation | two.sided |
| Future | All | -0.103 | -4.405 | 0.000 | 1827 | -0.148 | -0.057 | Pearson’s product-moment correlation | two.sided |
| Future | Routine | -0.049 | -1.180 | 0.238 | 578 | -0.130 | 0.033 | Pearson’s product-moment correlation | two.sided |
| Future | Stat | 0.151 | 1.373 | 0.173 | 81 | -0.067 | 0.355 | Pearson’s product-moment correlation | two.sided |
| Future | Timed Study | -0.170 | -5.870 | 0.000 | 1164 | -0.225 | -0.113 | Pearson’s product-moment correlation | two.sided |
| Now | All | -0.251 | -8.081 | 0.000 | 975 | -0.308 | -0.191 | Pearson’s product-moment correlation | two.sided |
| Now | Routine | -0.285 | -3.342 | 0.001 | 126 | -0.437 | -0.118 | Pearson’s product-moment correlation | two.sided |
| Now | Stat | -0.072 | -1.943 | 0.052 | 718 | -0.145 | 0.001 | Pearson’s product-moment correlation | two.sided |
| Now | Timed Study | -0.094 | -1.067 | 0.288 | 127 | -0.263 | 0.080 | Pearson’s product-moment correlation | two.sided |
Provider role that ordered back-dated levels
Order type used for back-dated levels
Orders for future labs by each order priority. Future labs are considered those > 1 hour from the time of ordering.
A large number of Routine orders (81%) were actually intended as future timed orders.
Provider role placing future orders using Routine or Stat
Provider role placing Now orders using Timed Study